Flask for ingot-molds.



1. B. WALKER.

FLASK FOR lNGOT MOLDS.

APPLICATION FILED DEC. 13. 1916.

Patented Apr. 3,1917.

To all whom it may mace a Be it known that 1, JOHN B. WALKER, a

I citizen of the United States of America, re-

siding at Birmingham in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Flasks for ingot-Molds, of which the following is a specification.

My invention relates to a flask which is especially though not exclusively adapted for use in the molding of ingot molds and like large tubular or hollow bodies.

The object of my invention is to simplify the handling of'the flask and the stripping of the casting therefrom, and to this end the flask, in its preferred embodiment, is split vertically and has its sections hinged at the top and provided with bottom fastemngs which are detachable or removable. I provide the flask with what I term opening lugs disposed in a plane at right angles to the plane of parting between the flask sections and arranged so that when engaged by the hoist tackle the latter will exert throug them a pull on the flask sections that will swing them apart on their hinges and open up the bottom of the flask. In order to facllitatethe a plication of the bottom fastening,l[ provi e each section of the flask with a pair of what I term closing lugs so ar-, ranged that when the hoist tackle is passed over these four lugs it will draw the flask sections together in position to receive the fastenings. With this arrangement of parts, by shifting the point of connection for the lifting tackle,the flask can be-opened or closed and transported at will and I am enabled to eliminate the expensive labor charges that are now incurred in connection with the stripping, assembling and handling of the flask, and to .do the work with a minimum of time and trouble, thus materially reducing the manufacturing cost of castings made with my apparatus.

As illustrative of what I consider the preferred. embodiment of my invention, but. without intention to limit myself to the details disclosed, reference is made to the acu tion with the crane companying drawings which form a part of this specification, and in which Figure 1 shows the flask in closed posiclosing lugs.

loop applied to the T-MWIJDS.

e w e Patented a a, ii.

Application am December at, me. serial no. waste.

1' and 2. The section 1 is enlarged at one side to receive the gate for pouring the mold and the plane of parting between the sections is arranged to pass midway through the oppositely disposed liftin lugs of the ingot mold, the flask being en arged by olfsets 5 to provide clearance for the lifting lugs as the flask is stripped vertically ofl the mold. These sections 1 and 2 are provided at their upper ends with perforated lugs 3, and a pivot bolt 4 is assed through each pair of lapping lugs, t us serving to hingedly connect the sections 1 and 2 at their upper rmeeting edges. I provide what 1 term pairs of closing lugs on each side of the flask, each pair comprising a lug on both sections, disposed close to their meeting edges and slightly above the middle of the flask. The lugs of each pair are juxtaposed so that the chain or rope loop 15 of the hoist rigging can conveniently be passed over both at the same time, as seen in Fig. 1. Each flask section is also provided with one opening lug 7, which lugs are preferably disposed above the flask center and lie diamatrically opposite each other in a vertical .plane at right angles to the plane of parting. between the flask sections. On each side of the flask near the lower ends of the oflsets 5 I provide a pair of shoulders 8 which have countersunk notches in their upper edges to receive a .U-shaped clamp 9 which drops into the notches and embraces the outwardly facing sides of the shoulders so as to clamp and hold the flask sections together. As will be noted in Fig. 1, the inner edges of the side legs of the clamp are slightly tapering so that when the clamps are driven down a tight joint between the flask sections will be obtained. The shouldersS merge into lugs 10 which extend to the lower edge of the flask sections and are provided each with a transverse hole 11, the holes in adjacent lugs registering and being adapted to receive a bolt 12 having ping operation is-to ta an enlarged head on one end and having anut 13 on its other end, the nut being screwed only far enough to serve, in conjunction with the bolt head, to limit the o 5 of the lower ends of the fl sections.

In operation, when the ingot mold is; cast in the flask, the sections thereof are clam ed together and the moldand contained casting.

are transported to the point where the stripe place. In conduct- 1ng this operation, the first step is to knock off the clamps 9 after which the crane loop 15 is passed over the opening lulgs 7, whereupon on hoisting theflask the u of the loop 15 ends working over the top ge of the flask to the lugs 7, as seen in Fig. 2, will positively openout the bottom of the flask to the limit permitted b the bolts 12, which is suflicient to permit t e casting to drop freely therefrom. After this takes place, by engaging I the crane loop 15 over the pairs of lugs 6, the loop as it lifts the flask,'will draw the lugs 6 of each pair together and close the flask so as to permit the fastening clamps 9 to be replaced in position. It will be seen that all manipulation of the flask requiring power can be done by the crane and I thus reduce to a minimum the labor for handling and stripping the flask.

It will be understood that the manner in which I have illustrated a flask is exemplary merely, and that any type of flask may be adapted to my invention and parted in as many sections as good practice may require in each particular case.

It will be noted that the clamp and limit I means are simple and rugged, and moreover, are of such character that the sand and hot metal falling on them will not hang and interfere with their operation. The lugs 8 and clamp 9 are peculiarly adapted for use on a jarring table, it being noted that the clam is so disposed that it will tighten during the jarring operation and the shoulders at the outer ends of the lugs form pockets which receive and hold the clamp between them and the flask to prevent any outward displacement thereof. j The limit means also tion will not affect it.

' One of the most important advantages resulting from the operation of my flask is that it opens up in such manner as to leave the mold sand adhering to the casting and this causes the latter to anneal as the result of the slow and gradual manner in which it cools. In operation, the castings as stripped from the flask are set aside and allowed to cool at least twelve hours before they are cleaned, and as a result the sand will strip freely from the casting.

When I refer to the-sections as hinged, I mean to include any means for connectin the upper ends of the sections so as to hol them against parting while the flask is on lower ening movement I position, and lugs on thesections adapted to is of such character that the jarring opera thej table and which will permit the d ends, of the flaskto open out or expan i i a o Having thus described my invention, what I claim as new and desire to by Letters Patent, is x v a 1. A mold flask formed in vertical sections which are hingedly connected so that the sections can swing apart at a lower end of the flask, lugs near the lower ends'of the flask swtions, clamps on aging the tops-of the lugs and adapted to old the free endsof the flask sections together in assembled engage hoisting tackle and disposed in osi- 86 tion thereon to adapt the weight'of the as when suspended by said lugs, to swin sections apart when free of their hofdihg means and expand the flask, substantially as described.

2 A mold flask formed in vertical sections which are hingedI-y comiected so that the sections'can swin apart at a lower end of the flask, detachab e clamp means to hold the free ends of the flask sections together in assembled position, lugs on the sections adapted to engage hoisting tackle and disposed in position thereon to cause the weight of the flask, when suspended by said lugs, to tend to swing the sections apart and expand the flask, and stop means carried by the flask. sections to limit their outward swin 3. A flask for molds parted verticall to form sections hingedly connected near t eir upper ends, means to fasten the free lower ends of the flask sections together in assembled position, and pairs of juxtaposed lugs adapted to engage hoisting tackle, each pair comprising lugs on ad'acent flask sections, substantially as descri ed.

4. A flask tfor molds divided vertically into half sections, means to hingedly conp the purposes described.

5. An ingot mold flask divided vertically into half sections which are hinged to-' gether at their upper ends and adapted to swing apart at their lo'w=..r ends, means to limit the opening movement of the flask sections, and lifting lugs on'each flask section adapted for engagement with hoist tackle, each section having a In near each side edge and a lug substantia ly midway between its side lugs, the adjacent side lugs of the flask sections forming a juxtaposed pair adapted to be received in the bight of the hoist tackle.

6. An ingot mold flask divided vertically into half sections on a plane in line with the lugs on the ingot mold to be cast therein, the

flask bein enlarged opposite the position for the moldflugs to permit the latter, when being stripped from the flask, to pass downwardly through the flask, means to pivotally connect the flask sections together at their upper ends, releasable means to hold the flasksections together at their lower ends, and lifting lugs on the flask arranged to cooperate with lifting tackle in opening and closing the flask sections, substantially as described.

7. An ingot mold flask divided vertically into half sections which are hinged at their upper ends, lugs near each lower side edge of said flask sections, said lugs forming juxtaposed airs on each side of the flask and having alming notches in their upper edges, clamps adapted to seat in said notches and embrace each a pair of said lugs, each flask section having in its upper portion a flask closing lug near each edge, a flask opening lug disposed substantially midway be-' tween the closing lugs of its respective flask section, substantially as described.

8. In an ingot molding flask having on each side opposite the mold lugs an oflset extending to the bottom edge of the flask to provide for stripping the mold lugs therethrough, the flask being divided into half sections on a vertical plane intersecting said ofl'sets, horizontal alining pivot pins to connect the flask sections at the' top, clamp means to connect the flask sections at the bottom, co-acting means on the flask sections to limit their bottom opening movement, a pairof lifting lugs on each side of the flask, each pair comflprising a lug on each flask section, and a ask opening lug on each section, said opening lugs being disposed in a vertical plane substantially at right anglesto the plane of parting be tween the flask sections.

9. An ingot mold flask adapted for use on a jarring table and formed by hinged vertical sections, and releasable fastemng means for the lower ends of the flask adapted to be tightened by the jarring operation.

' 10. An ingot mold flask ada ted for use on a jarrin table and forme by hinged vertical sections, releasable fastening means for the lower ends of the flask adapted to be tightened by the jarrin operation, and lugs on the flask dispose to co-act with hoisting tackle to expand the flask when said fastening means is released.

11. An ingot mold flask adapted for use on' a jarring table and formed by vertical sections hingedly connected at their upper ends, lugs near the lower ends of the flask sections having upwardly facing notches, inverted U-shaped clamps adapted to fit in said notches and embrace adjacent pairs of lugs to hold the sections in assembled relationship, and lifting lugs adapted to cooperate with hoisting tackle in opening the lower ends of the flask sections when released, substantially as described.

12. An ingot mold flask divided vertically into sections, means connecting the upper ends of the sections together in a manner to permit their lower ends to swing apart, means to limit the opening movement of said sections, and lifting ln s on the flask arranged to cooperate with 1i ing tackle in opening and closing the flask sections, substantially as described.

13. An ingot mold flask split vertically into sections hinged together at their upper corner edges, demountable fastenings one disposed on each side of the flask near the lower ends of the section edges and adapted to secure the flask sections together, means to limit the expanding movements of the flask sections when the fastenings are attached and,- a lifting lug on each section adapted to coact with hoisting tackle to expand the flask sections when released.

l4. An ingot mold flask split vertically into sections hingedly connected at their upper ends, means to secure the lower ends of the sections together, comprising lugs on the sections and removable clamps adapted to engage the lugs, means to limit the opening movements of the flask comprising a member passing freely through each an of lu and havin stop means on its on s,'and 1i ing lugs a apted to cooperate with the hoist tackle in opening the flask sections when released, substantially as described.

In testimony whereof I aflix my signature.

7 JOHN B. WALKER. Witness:

Norm: Wnnsn. 

